A seed is the ripened ovule of gymnosperm or angiosperm plants. The importance of the seed relative to more primitive forms of reproduction and dispersal is attested to by the success of these two groups of plants in dominating the landscape.

Growing your own transplants from seeds indoors can give you a head start on the growing season. In some cases, it may be the only way to obtain plants of a new or special cultivar (variety) that is not widely available through garden centers. - Evans and Blazich

What You'll Need

A Sunny Window:
Plants like a southern exposure. If you don't have a window that will do, consider investing in some cool-white florescent bulbs.

The human animal evolved to eat every animal or plant that wasn't actually toxic (and, after simple treatments, some that to greater or lesser degree were). Seeds are a rich store of energy, some have good protein levels, vitamins (especially vitamin E), minerals, and protective phytochemicals. Living as wild animals for the last million years or so, we ate every seed that was worth collecting, grass seed, legume (bean-like, pea -like, peanut and others), and any other seeds that were sustaining and productive, or big enough to be worth bothering with.
Seeds were seasonal. We travelled to seed sources and ate them when they ripened, generally over a short period of time.

Nuts can be used in many ways. Whole, flaked and ground nuts and nut butters are widely available. A classic vegetarian savoury is nut roast and many vegetarian cook books give a recipe for one, which can be endlessly varied with different herbs and flavourings and different combinations of nuts and cereals. Nuts can be added to sweet dishes, cakes and biscuits, and nut butters can be added to soups and stews to thicken them.

A variety of species can provide edible seeds:

The seed is the dispersal stage of the life cycle of angiosperms and gymnosperms. It contains the embryo, the next generation of plant in miniature. Many seeds are dry when shed from their parent plant and are thus adapted to withstand harsh environments until conditions suitable for germination are achieved.